ExaGrid Detailed Product Description

7

Designed for Performance

Data Deduplication

ExaGrid’s innovative approach to data deduplication minimizes the amount of data to be stored by using

zone-level data deduplication across all received backups.

ExaGrid’s zone-level technology stores only the changed data at a granular level from backup to backup

instead of storing full copies. ExaGrid uses zone stamps and similarity detection.

This unique approach reduces the disk space required by an average of 20:1 and from 10:1 up to 50:1

depending on data type, retention and backup rotation delivering unparalleled performance for the fastest

backups and restores.

ExaGrid is the only vendor that allows backup applications such as Veeam and Commvault to keep their

deduplication turned on and then ExaGrid further deduplicates the data for increased storage efficiency.

Data Backup Performance

The ExaGrid system performs deduplication in parallel with backups by using idle system cycles. Termed

“adaptive deduplication,” this approach keeps deduplication out of the backup path, resulting in faster

backups and a shorter backup window. Adaptive Deduplication gives full system resources to backups for the

shortest backup window and uses idle cycles to perform deduplication and offsite replication, allowing data

to be replicated offsite for a strong offsite recovery point (RPO) for update to data for disaster recoveries.

ExaGrid supports data deduplication globally across all

targets and all appliances in a scale-out system. Global

deduplication ensures that all data is deduplicated regardless

of the number of targets and/or the number of appliances in a

system. In addition, global deduplication allows organizations

the flexibility to redirect backup jobs to any target, on any

appliance, at any time while maintaining data deduplication

globally across the entire system.

Once the backup job is complete and off the network, the

data is protected and immediately available to be restored.

When deduplication and replication are complete, the data

is ready for restore on the ExaGrid appliances at the disaster

recovery site. ExaGrid uses Adaptive Deduplication that avoids

the performance penalty of inline deduplication. ExaGrid

deduplicates in parallel with backups coming in but performs

no inline processing which allows for at least a 3X performance

advantage over inline deduplication appliances. As shown in

the diagram to the right, backup data is written directly from

the backup server to ExaGrid’s disk-cache Landing Zone at the

highest possible rate with no inline processing to interfere,

resulting in the shortest possible backup window.

Media

Server

Shortest

Backup

Window

Landing

Zone

Inline

ExaGrid

COMPUTE

HASH

HASH

COMPARE

BUCKETING

COMPRESSION

SPLITTER